Can you stick it on the door when you move the perpetual calendar?

Of course. As guardians of the common beliefs of Taoism and Han nationality, there is a custom of posting (inviting) door gods throughout China during the New Year. At first, the janitor carved mahogany into a human shape and hung it next to people. Later, it was painted as a janitor and posted on the door. Every household has a door idol, and later generations often draw a pair of door gods as a skill, which entrusts the good wishes of the working people of the Han nationality to ward off evil spirits and avoid disasters, and welcome the good fortune.